The potential effects on wildlife of border security fencing and potential measures that can mitigate or compensate for their negative impacts.

The importance of the different impacts will vary between species, depending on habitat, movement ecology, size, behaviour, and population density.不同影响的重要程度会因物种不同而存在差异，具体取决于该物种的栖息地、运动生态学（movement ecology）特征、体型、行为模式以及种群密度。